Heat the oven to 200C.
In a cup, add the milk and lemon juice, set aside.
In the bowl, mix the flour, sugar and baking powder.
When the milk has thickened, combine it with the aquafaba using a mixer. Until it mixes well and becomes foamy.
Add the wet mix over the dry mix and whisk until smooth.
In the cast iron pan, put the vegan butter and put the pan in a hot oven, until the butter melts completely and the pan heats up.
With a towel or gloves, remove the pan with melted butter from the oven and pour the pancake mixture into it. Put the pan back in the oven and leave the pancake to bake for 30-40 minutes, until well browned at the edges.
Serve the pancake with powdered sugar and fresh fruit.